Basics of Electricty
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| Electricity does not occupy space or have physical or chemical properties. | True
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| Distilled water is a particularly good conductor. | False
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| There are two types of electric current: direct and converted. | False
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| Normal electric wall sockets that power a hair dryer or curling iron are 220 volts. | False
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| The heating element in a hair dryer heats up because it is not large enough to carry the electric current. | True
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| A wall plate is also known as facial stimulator. | True
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| Microcurrent travels throughout the entire body. | False
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| UV prompts the skin to produce vitamin D, a fat-soluble vitamin that promotes mineralization of bones. | True
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| Ultraviolet A light has the longest wavelength of the UV light spectrum. | True
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| Electricity is a form of energy that, when in motion, exhibits: a. thermal effects c. chemical effects b. magnetic effects d. all answers correct | d. all answers correct
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| Lightning bolts travel through the air at speeds of up to how many miles per hour? | 60.000
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| A substance that is a particularly good conductor of electricity is: | Copper
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| The path of an electric current from the generating source back to the original source is a(n): | complete circuit
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| Rubber, silk, wood, and glass are common examples of: | insulators
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| Rapid and interrupted current that flows in one direction and then in the opposite direction is: | alternating current
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| Electricity travels how many miles per second? | 186,000
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| The unit that measures the pressure or force that pushes the flow of electrons forward through a conductor is a(n): | Volt
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| The current for facial and scalp treatments is measured in: | milliamperes
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| A measurement of how much electricity is being used in 1 second is a(n): | watt
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| The special device that prevents excessive current from passing through a circuit is a(n): | Fuse
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| The electrical appliance connection that supplies current to the circuit is the: | live connection
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| Electronic facial treatments are commonly referred to as: | electrotherapy
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| An applicator that directs electric current from a machine to the client’s skin is a(n): | electrode
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| The negative or positive pole of an electric current is referred to as the: | polarity
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| The positive electrode is called a(n): | anode
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| Infusing water-soluble products into the skin with the use of electric current is known as: | iontophoresis
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| Cataphoresis forces acidic substances into deeper tissues using galvanic current from the: | positive toward the negative pole
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| The process used to treat acne and milia and soften and emulsify deposits in the hair follicles is: | desincrustation
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| Thermal or heat-producing current with a high rate of oscillation or vibration is: | violet ray
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| The type of current that should not be used on clients who are pregnant, have high blood pressure, or have a pacemaker is: | Tesla high-frequency
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| The distance between two successive peaks is called: | wavelength
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| Rays with short wavelengths that are the least penetrating, produce chemical effects, and kill germs are: | ultraviolet rays
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| Rays with long wavelengths that penetrate more deeply and produce more heat than visible light are: | infrared rays
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| Lasers work by a process that turns the light from the laser into heat called: | photothermolysis
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| Substances that speed up chemical reactions | Catalysts
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| Unit that measures the strength of an electric current | Ampere
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| Unit that measures the resistance of an electric current | Ohm
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| Currents used in electrical facial and scalp | Modalities
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| Extremely low level of electricity that mirrors the body’s natural electrical impulses | Microcurrent
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| Color component within the skin such as blood or melanin | Chromophore
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Created by:
mztina216